(19)
(11) EP 1 576 196 A1

(12)

(43) Date of publication:
21.09.2005 Bulletin 2005/38

(21) Application number: 02781713.9

(22) Date of filing: 23.12.2002
(51) International Patent Classification (IPC)7C14C 3/02
(86) International application number:
PCT/IB2002/005611
(87) International publication number:
WO 2004/057036 (08.07.2004 Gazette 2004/28)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(71) Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
New Delhi 100 001 (IN)

(72) Inventors:
  • KANTHIMAHI Mookandi,Central Leather Research Inst
    Tamil Nadu (IN)
  • THANIKAIVELAN, P.,Central Leather Research Inst.
    Tamil Nadu (IN)
  • RAO, Jonnalagadda,R.,Central Leather ResearchInst
    Tamil Nadu (IN)
  • NAIR,Balachandran,U.,Central Leather ResearchInst
    Tamil Nadu (IN)
  • RAMASAMI, T.,Central Leather Research Institute
    Tamil Nadu (IN)

(74) Representative: Geary, Stephen 
Bawden & Associates 4 The Gatehouse 2 High Street
Harpenden, Herts AL5 2TH
Harpenden, Herts AL5 2TH (GB)

   


(54) PROCESS FOR PREPARING A SYNTHETIC ALUMINIUM TANNING AGENT